12211221151 has 2 divisors, whose sum is σ = 12211221152. Its totient is φ = 12211221150.

The previous prime is 12211221109. The next prime is 12211221161. The reversal of 12211221151 is 15112211221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12211221151 - 2¹⁷ = 12211090079 is a prime.

It is a super-2 number, since 2×12211221151² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211221161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105610575 + 6105610576.

It is an arithmetic number, because the mean of its divisors is an integer number (6105610576).

Almost surely, 2^12211221151 is an apocalyptic number.

12211221151 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211221151 is an equidigital number, since it uses as much as digits as its factorization.

12211221151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80, while the sum is 19.

Adding to 12211221151 its reverse (15112211221), we get a palindrome (27323432372).

The spelling of 12211221151 in words is "twelve billion, two hundred eleven million, two hundred twenty-one thousand, one hundred fifty-one".